Movable subframe for tractor-trailers

B - Operations – Transporting – 62 – D

Patent

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Details

B62D 53/00 (2006.01)

Patent

CA 2648321

A movable subframe for a tractor-trailer includes a pair of spaced-apart, parallel, elongated and longitudinally extending main members. At least two cross members extend between and are attached to the main members, and a retractable pin mechanism selectively positions the subframe beneath a body of a trailer of the tractor-trailer. The retractable pin mechanism includes only two pins, with each pin being located generally centrally along a length of a respective one of the main members of the subframe. Each pin is extendable through an opening formed in its respective main member and a selected one of a plurality of openings formed in a body rail of the trailer, so that when the pins are in an extended or locked position, the retractable pin mechanism provides generally central support for the subframe and for an axle/suspension system which depends from the subframe.

L'invention concerne un faux cadre mobile pour un ensemble tracteur et semi-remorque qui comprend une paire d'éléments principaux allongés, séparés, parallèles et s'étendant longitudinalement. Au moins deux traverses s'étendent entre les éléments principaux auxquels elles sont fixées et un mécanisme de clavette escamotable place de façon sélective le faux cadre sous la carrosserie de la remorque de l'ensemble tracteur et semi-remorque. Le mécanisme de clavette escamotable ne comprend que deux clavettes, chaque clavette étant située généralement en position centrale dans la longueur de chacun des éléments principaux du faux cadre. Chaque clavette peut passer à travers une ouverture pratiquée dans son élément principal respectif et une au choix parmi une pluralité d'ouvertures pratiquées dans un rail de carrosserie de la remorque, afin que quand les clavettes sont sorties, en position de verrouillage, le mécanisme de clavette escamotable forme un support généralement central pour le faux cadre et pour un système d'essieu/suspension qui dépend du faux cadre.

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